Macromolecular Research

, Volume 11, Issue 6, pp 425–430 | Cite as

Poly(n-butyl acrylate-co-methyl methacrylate) and poly(n-butyl acrylate-co-styrene)/ silicate nanocomposites prepared by emulsion polymerization

  • Yeong Suk Choi
  • In Jae Chung


Two types of poly(n-butyl acrylate) copolymer/silicate nanocomposites have been produced: poly(n-butyl acrylate-co-methyl methacrylate) [P(BA-co-MMA)]/silicate nanocomposites and poly(n-butyl acrylate-co-styrene) [P(BA-co-ST)]/silicate nanocomposites. The P(BA-co-MMA)/silicate nanocomposites shows the exfoliated structures but a P(BA-co-ST)/silicate nanocomposites have intercalated structures, because the BA/MMA comonomer has a higher polarity (e-value in Q-e scheme) than the BA/ST comonomer. The BA/MMA comonomer expanded the interlayer space of the silicate wider than did the BA/ST comonomer. The thermal degradation onset point of the P(BA-co-MMA)/silicate nanocomposites was 43°C higher than that of pure P(BA-co-MMA). P(BA-co-MMA)T5%, P(BA-co-MMA)T10%, and P(BA-co-MMA)T20% exhibit 134, 302, and 195% increases, respectively, in their storage moduli at −20 °C relative to the pure copolymer.


e-value interaction silicate nanocomposite basal spacing 


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Copyright information

© Polymer Society of Korea 2003

Authors and Affiliations

  • Yeong Suk Choi
    • 1
  • In Jae Chung
    • 1
  1. 1.Department of Chemical and Biomolecular EngineeringKorea Advanced Institute of Science and TechnologyDaejeonKorea

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